[sanddrag]

I'm not an AutoCAD user but I see it as one of two things

1. For whatever reason that is the way the program is made and it is like that for everyone and you just have to live with it.

2. Your video card is not good enough and is providing graphics problems.

There is nothing we can do about possiblility #1 so let's focus on possibility #2. On Autodesk Inventor, I've had it not display dimensions on sketches because the video card was not good enough. Also, I've seen it make a "phantom part" (invisible) that the mouse relates to that is offset from the part you are viewing on the screen. For example, if you click on (what you see as) a line, you are actually clicking in the middle of empty space (and vice versa).

I'm not sure if AutoCAD is as graphics intensive as Inventor, but it is possible that your video card is the source of your problems. What do you use? Is you video integrated into the motherboard?

Perhaps someone else can come up with better reasoning to this problem.